Calculation of the Longitudinal Electron Scattering Form Factors for the 91F and 27Al nuclei

For investigating the inelastic longitudinal electron scattering form factors F (q) s. An expression for the transition charge density is studied where the deformation in nuclear collective modes is taken into consideration besides the shell model transition density. The inelastic longitudinal C2 and C4 form factors are calculated using this transition charge density for the 19F and 27Al nuclei. In this work, the core polarization transition density is evaluated by adopting the shape of Tassie model together with the derived form of the ground state two-body charge density distributions (2BCDD s). It is noticed that the core polarization effects which represent the collective modes are essential in obtaining a remarkable agreement between the calculated inelastic longitudinal F (q) s and those of experimental data for all considered nuclei